参数资料
型号: LC89052T
元件分类: 消费家电
英文描述: SPECIALTY CONSUMER CIRCUIT, PDSO24
封装: 0.225 INCH, TSSOP-24
文件页数: 36/42页
文件大小: 482K
代理商: LC89052T
LC89052T
No.7457-41/42
10 Application Example
Decoupling capacitors (0.1F) for the power supply pin, should be located as close to the LC89052T as possible. Use
ceramic capacitors with good high frequency characteristics as the decoupling capacitors. Use a capacitor with a
minimal thermal coefficient for the PLL loop filter capacitor.
There are no constraints on the NC pin configuration. IC operation is not affected by leaving them open or by holding
them fixed at particular levels.
Table 10.1 Recommended Circuit Constant Values
Symbol
Recommended value
Use
Remarks
R0
50 to 1k
R1
75
Coaxial terminator
R2
50k to 100k
Input amplifier feedback
R3
1M
Oscillator amplifier feedback
R4
150 to 330
Oscillator amplifier current constraint
R5
*
PLL loop filter
Tolerance: ±5%
C0
0.01
to 0.1F
AC coupling
C1
1p to 33pF
Oscillator element load
NP0 special ceramic capacitor
C2
*
PLL loop filter
Film capacitor
C3
*
PLL loop filter
Ceramic capacitor
C4
Over 1
F
Power supply decoupling
Electrolytic capacitor
C5
0.1
F
Power supply decoupling
Ceramic capacitor
* : See section 8.3.1.
DSP
R5
C2
C3
2
3
4
5
6
7
8
9
10
18
17
16
15
19
20
CE
CL
DO
E / INT
AUDIO
XIN
SDIN
DATAO
LRCK
NC
LPF
LC89052T
NC
21
22
23
1
24
DI
PD
ERROR
XOUT
DGND
AGND
BCK
CKOUT
DAC
ADC
CPU
R0
R1
R2
C0
C1
R4
R3
11
12
14
13
UGPI
RXIN
AVDD
DVDD
C1
C4 C5 C4 C5
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